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Casio ALGEBRA FX 2.0 Computer Algebra System and Tutorial Modes User Manual

Page 9

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u solve

Function: Solves an equation.

Syntax: solve( Exp [,variable] [ ) ]

solve( {Exp-1,..., Exp-n}, {variable-1,...,variable-n} [ ) ]

○ ○ ○ ○ ○

Example

To solve AX + B = 0 for X

1(TRNS)e(solve)av(A)v+

al(B)!.(=)aw

○ ○ ○ ○ ○

Example

To solve simultaneous linear equation 3X + 4Y = 5, 2X – 3Y = – 8

1(TRNS)e(solve)!*( { )

d

a+(X)+ea-(Y)!.(=)f,

c

a+(X)-da-(Y)!.(=)-i

!/( } ),!*( { )a+(X),

X = – 1

a-(Y)!/( } )w

Y = 2

• X is the default when no variable is specified.

u tExpand (tExpnd)

Function: Employs the addition theorem to expand a trigonometric function.

Syntax: tExpand( Exp [ ) ]

○ ○ ○ ○ ○

Example

To employ the addition theorem to expand sin(A+B)

1(TRNS)f(TRIG)b(tExpnd)

s(av(A)+al(B)w

cos(B) • sin(A) + sin(B) • cos(A)

u tCollect (tCollc)

Function: Employs the addition theorem to transform the product of a trigonometric

function to a sum.

Syntax: tCollect( Exp [ ) ]

○ ○ ○ ○ ○

Example

To employ the addition theorem to transform sin(A)cos(B) to
trigonometric sum.

1(TRNS)f(TRIG)c(tCollc)

sav(A)cal(B)w

7-1-8

Using the CAS (Computer Algebra System) Mode

sin (A + B)

2

sin (A – B)

2

+

– B

A

X =